Add project tools and contributing guidelines (#281)

.github/workflows/cd.yml

@@ -0,0 +1,24 @@
+name: cd
+
+on:
+  release:
+    types:
+      - published
+
+permissions:
+  id-token: write
+  contents: read
+
+jobs:
+  publish_to_pypi:
+    name: publish to pypi on new release
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: JRubics/poetry-publish@v1.16
+        name: Build and publish to PyPI
+        with:
+          pypi_token: ${{ secrets.PYPI_TOKEN }}
+          ignore_dev_requirements: "yes"
+          repository_url: https://upload.pypi.org/legacy/
+          repository_name: embedchain